I absolutely love Little Mac. I was lucky enough to spend over 14 hours playing as the character at Oz Comic Con and am thus pretty sure I've played him more than anyone in the world outside Nintendo.

For anyone interested in Little Mac I wrote a complete break down on the character:
http://berathen.com/2014/07/little-mac-complete-breakdown.php

@zero_trigger_x That would be correct. Sheik, Zero Suit Samus, and Yoshi were also confirmed to be returning, but it's definitely Charizard and Greninja that took the spotlight.
http://berathen.com/2014/04/super-smash-bros-nintendo-direct-ultimate-guide.php